Patents by Inventor Kelvin Leslie Doerr

Kelvin Leslie Doerr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7437858
    Abstract: A welded wire reinforcement is used in combination with insulated concrete form blocks having opposed panels joined by form ties. A method of construction forms building structures with insulated concert form blocks. The reinforcement member has a base bar and a plurality of arms extending downwardly from the base bar and is utilized to provide increased internal strength to a modular concrete wall system. The welded wire reinforcement provides vertical and horizontal support without requiring any extra time or material to connect a vertical reinforcement to the concrete forms of the wall system. An alternate embodiment of the reinforcement member includes a horizontal base bar, arms extending downward and perpendicular from the base bar, and a plurality of end pieces attached to the arms to form a discontinuous bottom bar. The base bar and bottom bar are slidably received in rebar chairs defined by the form ties.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: October 21, 2008
    Assignee: Reward Wall System, Inc.
    Inventors: Henry E. Pfeiffer, Kelvin Leslie Doerr, Karen Ann Bexten, Maher Khalil Tadros
  • Publication number: 20080092472
    Abstract: An anchor assembly for use in joining together a masonry wall structure and a supporting back wall structure wherein the back wall structure is preferably formed using insulated concrete form (ICF) blocks each having a pair of opposed ICF panels associated therewith, the anchor assembly including an anchor member and a tie member. The anchor member includes an anchor portion adapted to penetrate one of the ICF panels and having at least one opening associated therewith so as to lie between the opposed ICF panels when attached thereto for allowing poured concrete to flow therethrough, and an attachment portion having a tab member positioned and located to overlay an ICF panel flange member when the anchor member is inserted within the ICF panel, the tab member being attachable to the ICF panel flange member.
    Type: Application
    Filed: September 21, 2007
    Publication date: April 24, 2008
    Applicant: REWARD WALL SYSTEMS, INC.
    Inventors: Kelvin Leslie Doerr, Henry E. Pfeiffer
  • Publication number: 20040216415
    Abstract: A welded wire reinforcement is used in combination with insulated concrete form blocks having opposed panels joined by form ties. A method of construction forms building structures with insulated concert form blocks. The reinforcement member has a base bar and a plurality of arms extending downwardly from the base bar and is utilized to provide increased internal strength to a modular concrete wall system. The welded wire reinforcement provides vertical and horizontal support without requiring any extra time or material to connect a vertical reinforcement to the concrete forms of the wall system. An alternate embodiment of the reinforcement member includes a horizontal base bar, arms extending downward and perpendicular from the base bar, and a plurality of end pieces attached to the arms to form a discontinuous bottom bar. The base bar and bottom bar are slidably received in rebar chairs defined by the form ties.
    Type: Application
    Filed: February 3, 2004
    Publication date: November 4, 2004
    Inventors: Henry E. Pfeiffer, Kelvin Leslie Doerr, Karen Ann Bexten, Maher Khalil Tadros